L-Ornithine

Names

[ CAS No. ]:
70-26-8

[ Name ]:
L-Ornithine

[Synonym ]:
Ornithine, L- (8CI)
ORNITHINE, L-
2,5-diaminopentanoic acid
(S)-ornithine
(S)-2,5-Diaminopentanoic acid
4-04-00-02644 (Beilstein Handbook Reference)
5-Amino-L-norvaline
Orn
(+)-S-Ornithine
L-(+)-Ornithine
L-Ornithine
EINECS 200-731-7
L,5 diaminopentanoic acid
(S)-a,d-Diaminovaleric Acid
(2S)-2,5-diaminopentanoic acid
Ornithine
(S)-2,5-Diaminovaleric acid
MFCD00242584
(2S)-2,5-diaminovaleric acid

Biological Activity

[Description]:

L-ornithine has an antifatigue effect in increasing the efficiency of energy consumption and promoting the excretion of ammonia.

[Related Catalog]:

Signaling Pathways >> Others >> Others

Research Areas >> Others

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
308.7±32.0 °C at 760 mmHg

[ Melting Point ]:
140ºC

[ Molecular Formula ]:
C₅H₁₂N₂O₂

[ Molecular Weight ]:
132.161

[ Flash Point ]:
140.5±25.1 °C

[ Exact Mass ]:
132.089874

[ PSA ]:
89.34000

[ LogP ]:
-0.96

[ Vapour Pressure ]:
0.0±1.4 mmHg at 25°C

[ Index of Refraction ]:
1.508

[ Storage condition ]:
2~8°C

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RM2980820

CHEMICAL NAME :: Ornithine, L-

CAS REGISTRY NUMBER :: 70-26-8

BEILSTEIN REFERENCE NO. :: 1722298

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C5-H12-N2-O2

MOLECULAR WEIGHT :: 132.19

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 10 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 372,75,1996 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2605 No. of Facilities: 420 (estimated) No. of Industries: 1 No. of Occupations: 5 No. of Employees: 3259 (estimated) No. of Female Employees: 2648 (estimated)

Safety Information

[ Hazard Codes ]:
T,N

[ Risk Phrases ]:
R23/25:Toxic by inhalation and if swallowed . R33:Danger of cumulative effects. R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .

[ Safety Phrases ]:
S20/21-S28-S45-S60-S61

[ RIDADR ]:
UN 2810 6.1/PG 2

[ WGK Germany ]:
3

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1

[ HS Code ]:
2922499990

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2922499990

[ Summary ]:
HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%